489954568 has 8 divisors (see below), whose sum is σ = 918664830. Its totient is φ = 244977280.

The previous prime is 489954557. The next prime is 489954571. The reversal of 489954568 is 865459984.

It can be written as a sum of positive squares in only one way, i.e., 348867684 + 141086884 = 18678^2 + 11878^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622153 + ... + 30622168.

Almost surely, 2^489954568 is an apocalyptic number.

It is an amenable number.

489954568 is a deficient number, since it is larger than the sum of its proper divisors (428710262).

489954568 is a wasteful number, since it uses less digits than its factorization.

489954568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61244327 (or 61244323 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The square root of 489954568 is about 22134.9173931144. The cubic root of 489954568 is about 788.3491499890.

The spelling of 489954568 in words is "four hundred eighty-nine million, nine hundred fifty-four thousand, five hundred sixty-eight".